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Country or Territory Operator VoLTE B1 2100 MHz B3 1800 MHz B5 850 MHz B7 2600 MHz B8 900 MHz B20 800 MHz B28 700 MHz B31 450 MHz B40 2300 MHz B41 2500 MHz CA [G 1] schemes References & Notes
As of May 2012, the penetration rate in Vietnam was estimated at 120% over a population estimate of around 91 million. [204] 2G coverage was shutdown nationally in October 2024 freeing the resources for 4G and 5G. [205]
The HLR will send to the VLR a MAP PRN (Provide Roaming Number) message to obtain the MSRN of the roaming cell phone. Like that the HLR will be able to route the call to the correct MSC. With the IMSI contained in the MAP PRN message, the VLR assigns a temporary number known as the mobile station roaming number (MSRN) to the roaming cell phone.
Vietnam ranks 16th in the world in terms of number of internet users. [11] There are five ISPs operating: Netnam Company, Vietnam Data Communication Company (VDC), Corporation for Finance and Promoting Technology (FPT), Saigon Post and Telecommunications Services Corporation (Saigon Postel Corporation, SPT) and Viettel Company.
Globe Telecom, Inc., commonly shortened as Globe, is a major provider of telecommunications services in the Philippines. The company operates the largest [citation needed] mobile network in the Philippines and one of the largest fixed-line and broadband networks. As of November 2023, Globe has 54.7 million subscribers, making it the second ...
The use of roaming SIM cards in its most common form is in normal voice applications such as mobile phone calls. The common application of roaming SIMs for voice is where mobile calls are automatically routed to, and made on, the least cost network. This typically means that incoming calls are free, no matter which network a mobile user is on.
In telecommunications, bill shock is the negative reaction a subscriber can experience if their phone bill has unexpected charges. [citation needed] Bill shock can happen when, for example, a user grossly overuses data applications without an appropriate data plan, or uses a mobile device while roaming (whether domestically or internationally) without understanding the voice or data roaming ...
Tizana Fabi, AFP / Getty Images Travelers who use smartphones like the iPhone and the Google Nexus to check their e-mails or find their location on an online map may be slapped with unlimited ...